Hydrocarbon-motor.



L. K. SNELL.

HYDROCARBON MOTOR.

APPLICATlc/N man Nov.lr.1s15.

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WITNESS ATTORNEY UNITED STATES PATENT FFICE.

LYLE K. SNELL,' OF DETROIT, MICHIGAN. ASSIGNOR TO CADILLAC MOTOR CAR COM- PANY, 0F DETROIT, MICHIGAN, A CORPORATION 0F MICHIGAN.

H YDROCARBON-MOTOR.

Patented Sept. 4, 1917.

Application filed November 17, 1915. Serial No, 61,899.

To all whom it may concer/n Be it known that I, Lrnn K. Sxnuu, a citizenof the United States, and resident of Detroit, lVayne county, State of Michigan, have inventedcertain new and useful lmprovements in l'lydrocarboli-Motors, of which the following is a speeificatiom This invention relates to hydrocarbon motors, and particularly cooling systems, as applied thereto. l

One of the objects of this invention is to improve circulating systems yimgeneral and particularly cooling systen'is internal combustion engines, where it is desired to maintain the coolingmedium at a uniform temperature.

Another object is to provide a simple and eiicient arrangement of valve mechanismsfor controlling the {iow of liquid in a circulating system.- v

Another object is to providea positive means for draining a liquid circulatingsystem, suclras is used in connection with internal combustion engines.

Another object is to provide an improved arrangement of valve mechanism, particu- `larly a valve mechanism which comprises a plurality of interconnected valves which maybe easily7 manufactured, assembled, ad-

and disassembled.

Another object is to provide effective means for manually operating valves which normally are controlled by automatic means,

such as a thermostat, upon failure of the l -automatic means to' function properly.

These, and other objects, will appear from tl'ieLfollowing description, taken in connection .Withthe drawings which form a part of this specification, and in which z' Figure 1 is a side elevation, with portions broken away, of apower 'plant embodying a form of this invention; j

Fig.2 is an enlarged vertical sectional view, substantially on the line 2n-' 1 lof Fig. 1, through the circulating and regulating mechanism, also showing Fig. 3 is a transverse section substantially on theline 3-3 of Fig. 2;

Fig. 4` is a vertical section through the valve chamber, substantially on the 'line 4-4 s applied toA j the lower part thereof wlith the driving mechaof Fig. 2, with the valve mechanism removed;

Fig. 5 is a detail view ot' the drain or discharge valve; and

Fig. (i is a detail of a cam for manually operating the valve mechanism.

leferriigig to thge drawings, lOrepresents a crank .case/nml 11 011e of a plurality of cylinder blocks mounted thereon in any suitable mannerf in V relation, as by bolts 12. il'hile this invention may be applied to a cooling system, the cooling medium of which is adapted `to circulate in series 'through all of the cylinder blocks of the motor, a description ofthe cooling system, as applied to one block'only is deemed suflicient for a clear understanding of the invention; therefore, this description will be so confined.

.The cylinder block j the usual jacket 13, having an intake .port 14, which may be arranged adjacent one end thereof. An outlet port 15 may be provided adjacent the opposite end of the cylinder block. This outlet port may then be connected, as shown, by means of the flexible branched conduit .16, 16 to a radiator 17, and valve chamber casing. 18, respectively. The radiator 17 may be provided adjacent a port 1i), which may be connected by means of a flexible. conduit 2O with'the chamber casing 1S.

Tt will also be noted that the ygas intake 21 is provided with a water jacket which is 11 is provided with fed by a conduit 23, which is led into the...

upper part of the cylinder jacket, as at 2.41

An outlet 25 for the gas intake. jacket may also be connected with the casing 1S, as by the conduit 2G. A

llVhile the .pump mechanism and auto- "matic control, which will be more particufsiphon systems, or systems adapted to be manually controlled.

The pump mechanismand automatic con4 trol, above referred to, brieiy,

which lhas been provided for a force feed circulating system, may comprise a pump ol the well known centrifugal type, comprising a casing consisting of parts 28 and 2t), which may A suitable packing box 36 is provided in the part 9.8 for making the same water tight at its inner side. Also arranged in the crank case l0, at opposite sides thereof, are bearings 37 t'or supporting a` driving shaft 38, which is arranged transversely to the motor crank shaft 3S) and connected thereto for being driven therefrom, as by spiral gears 40 and 41. The shaft 38 may have a de-. tachable connection, as by a pin and slot joint 41, with the pump or impeller shaft The casing member 29 is provided adjacent its upper portion with an opening 42, over which is arranged a valve or liquid chamber 4.3 and secured thereto, as by bolts 44. This chamber, it will be seen is provided with a laterally extending inlet port 45, which is adapted to communicate. with the conduit 20, as hereinabove.

It will be noted that the port 45 com` municates with an inner shell 46, shown as termed integral with the chamber, this shell being provided with openings or intake ports 47 and 47 leading to the suction intake, 48 ot' the pump mechanism and these ports are adapted to be controlled b V a valve mechanism, which will now be more particle lai-ly described.

It. will be seen that. the chamber 43 is provided at. its upper side with an opening 49, over which is arranged a cover 50, which is suitably secured in position as by bolts 51. lt will be seen that this 'cover plate 50 is provided with a. port 52 and nipple 53. lt will be noted that the port communicates with the conduit 26 from the intake jacket 22 and that the cover plate 50 has suitably secured thereto. the branched conduit 16. which is connected with the cylinder jacket' outlet port 15, as hereto'l'ore described.

lt. will be noted that. the casing member 29 is provided with a downwardly extendingr cylindrical portion 54, which serves as a journal or seat for a .sliding rod or valve member 55. It will be noted also that the cylindrical portion 54 is provided with a discharge port 56, which is adapted to be closed by the threaded plug 57. This port may be brought into communication with.A

or eut otf from, a port 58 leading trom the lowest part of the pump casing 28. which. also, is normally the lowest point in the entire water cooling system. The communication of the discharge port 56 and the port.

' 58 it will be seen, is controlled by an up and `down movement of the valve member 55,

which is provided' adjacent its upper end with a slot 59, in which may be fitted a cam 60, arranged on the shaft 61, which, it will be seen, is journaled in a sleeve 62, threaded in the boss 63 in the easing member 29. The shaft 61 may be turned by its squared portion 64 and held in position by means of the collar 65, and the packing 66 which is arranged between the collar and the sleeve 62, and is adapted to be-jammed therebetween. It will be noted that a lock nut 67 is threaded on the collar 65, for maintaining the same in adjusted position.

The valve member 55 has its upper end drilled out and threaded to provide a. detachable connection with an, automatic .con-

trol in the form ot a thermostat lnember 68,. and tor supporting the same. The upper, orl

opposite end of the thermostat is provided with a threaded stem 69, on which may be arranged upper and lower valve members 70 and 71, which may be adjustably secured in position by means of the tapered pin 7 2, which is threaded on the stem 69, the upper and lowervalve members 7 0 and 71 forming a balanced valve mechanism for controlling the flow of cooling medium from the conduit 16 or 20 to the chamber 13, and the suction port 48 of the pump. It will be noted that the upper valve member 70 is provided with a port or bypass 73, so that when the flow ot liquid through the port 45 is unrestricted; that is, when the valve members 70 and 71 are in their uppermost position, a restricted flow of medium is permitted through the bypass 73. While this bypass 73 may perform several functions, the main object is to permit a circulation of water through the gas intake jacket 72, regardless of the position of the automatically controlled valve.

Having described the construction and ar rangement ot' the various parts used in this invention, the operating of the cooling system will be. understood to be as follows: Assuming the motor to be started when the cooling medium is below the desired temperature. the thermostat 68 will contract, seating the valve members 70 and 71 on their respective discharge ports 17 and 47': thus the communication ot the port 45 with the suction intake 48 of the chamber 28-99 will be cut off, and the cooling medium will be drawn in the pump through the conduit 16 and port 4S), discharging it therefrom through the conduit 27 to the cylinder jacket at 14. through the jacket. and dischargiinr therefrom at the outlet 15; through the conbduit 16 to the casing 18. l l

If, when the temperature of tite cooling medium rises above a predetermined degree. the thermostat 68 expands, raising the valve members 70 and 71 from their respective seats, the upper valve memberfrestrietimr the flow of water through the conduit 1627 and permitting .water to enter the pum'p has been provided a manually operated.

let 15, when it continues to flow to the radiator and returns to the pump casing by means of the conduit 20. Of course, as referred to above, a small quantityof water is drawn'through the conduit 2G from the carburetor water jacket, regardless of the position oi' the valve members.

Having thus described the normal operation of thiscooling system, it will be understood fromthe above description that there has been provided an automatically controlled valve, comprising members G8, 70 and 7l, which may also be manually operated by means of thc shaft 61.

Itwill also be understood that there valve member 54, which is interconnected with the automatically controlled valve, so

that the two'of them may be operated together, and these valves are so connected that one, such as the automatically controlled valve is permitted to function independently of the valve member 54, which may be manually controlled only.

In the preferred form of invention, it will be understood-from what has been described that When it is desired to drain the cooling medium from the. system it is only necessary, after having removed the plug 57, to turn the shaft 61, raising the valve member 54 and opening all of the intake ports tothe intake 48 to the suction side of the pump, and all of the water in the system will be caused to drain by gravity to the Ylowest point infthe system; namely, the port 56. lOn the other hand, it will be seen that the discharge valve is so interconnectedwith the other valves that the drain port may not be'opened without at the` same time opening all other ports and conduits leading to the drain port, 'so that there is no danger of not fully draining the entire system, so llong as the drain port valve only is open.

It will, of course, be understood that the usual vent for the radiator may be arranged in the cap, as at 74.

While I have shown and described a preerredv form ofy my invention, it will,l of lcpiirse, be understood that various modifications and changes may be made, by one skilled in the art, withoutdeparting from the spirit and scope of my invention.V

Having thus described my invention, what I claim and desire to secure by Letters Patent is 1. In a liquid chamber provided with an inlet and andra'in port, in combination with valves for controlling said ports, of, means connecting said valves whereby the inlet port lis always opened when said drain port is opened.

2. In a plurality of inlet ports and a discharge port, in combinationv with valve means for controlling said ports, of means connecting said valve means whereby all of said inlet ports, are opened when said discharge port opened.A ,a

3. In a liquid circulating system, the combination with means for'circulating the coolving medium, a plurality of inlets feedingto said lcirculating means, valves for controlling said inlets, said circulating means being provided with a drain port and a valve controlling said port, oi' means connecting said valves whereby allv of them are opened when said drain port is opened.

4. In a liquid circulating system, the combination with a chamber located at the lowest level in said system, said chamber. being provided with a plurality of ports. and valves for controlling the passage. of liquid through said ports, said ports including a vdrain port located at the lowest point in the system, of means connecting said valves whereby all the liquid in said Asystem may low into said chamber when said drain port is opened. 1 f

5. In a pump chamber, provided. witha plurality of intake ports, a discharge port and a drain port, the combination of valves liquid chamber provided with a l controlling the passage 4of liquid therethrough, thermal controlled means for operating one of said valves, and manual means for operating the valve controlling the drain port, said manual means also being. adapted to control sai'id other valves so that all ports to the lchamber 'are open when said drain port is open.

A6. The combination, in a pump chamber provided with an inlet port and a discharge port arranged in the upper par-t thereof, of

a valve for controlling said inlet port'. a`

thermostat in said chamber operating said latter valve, said chamber being also pro- ,vided with a drain port arranged in the. lowest' part thereof, a valve for controlling said drain port, and manually controlled means for opening said latter valve and said former valve independently ofthe action of said valve a valve for controlling said inlet port, a thermostat in said chamber operatin said valve, said chamber being also provide with a drain port arranged in the lowest part thereof, a valve for controlling said drain port, a rod connecting said valves, and means for manually controlling said valves inde pendently of the action of said thermostat.

9. In a liquid chamber having a port, the combination of a valve for lsaid port, a thermostat for operating said valve, and means for effecting a relative a'djustment between and thermostat.

10. In a 'liquid chamber having a port, the combination of a valve for said port, a thermostat tor operating said valve, means i'or effecting a relative adjustment between said valve and thermostat and means tor adjusting the position ofsaid thermostat.

11. In an internal combustion engine, the. combination with a cylinder jacket, a radiator, a conduit connecting the radiator inlet with the jacket outlet, of a chamber having a plurality of inlet ports and Ia discharge. port, a by-pass around said radiator connected with one of said inlet ports, a conduit connecting the radiator with another inlet port, valve means for controlling said ports, means coperating with. said first means whereby all of said inlet ports are opened when the discharge port is open, and means connecting said chamber with the jacket. inlet.

12. In an internal combustion engine, the combination with a cylindecjacket,a radiator, a connection between the radiator inlet and the jacket outlet, ofa pump chamber having a plurality of inlet ports, a connection between the radiator outlet and one. oi said inlet ports, a by-pass around said radiator and connected with another of said inlet ports, said chamber also having.,r a discharge port arranged at the lowest point in the circulating system, valve means for controlling all of said ports, means coperating with said first means whereby all of said inlet ports are open when the discharge. port is open, anda connection between said chamber and the jacket inlet.

13. In an internal combustion engine, the. combination with a cylinder jacket, a radiator, a connection between the radiator inlet and the jacket outlet, a plurality of inlet ports, a connection between the radiator outlet and one of said inlet ports, a by-pass around the radiator connected with another of said inlet ports, said chamber also having a discharge port arranged at tho bottom portion thereof, valves for controlling said ports, a connec tion between the chamber and the jacket inlet, and manually operated means for simultaneously opening said valves.

14. In an internal combustion engine, the combination with a cylinder jacket, a radiot a chamber having ator, a connection between the radiator inlet and the jacket outlet, of a chamber having a pair of inlet ports, a connection between the radiator outlet and one of said inlet ports, a. by-pass around the radiator and connected with the other of said inlet ports, said chamber having a discharge port arranged at the. bottom portion thereof, a connection between the chamber and the jacket inlet, valves for controlling said ports, n'ianually operated means for simultaneously openingr said valves, and thermostatically operated means for operating one of said valves independently ot' the other.

15. In an internal combustion engine, the combination with a cylinder jacket, a radiator, a connection between the radiator inlet and the jacket'. outlet, a chamber provided with a plurality o't` inlet ports and a discharge port` and valves for controlling the passage ol' liquid t-ln'rethrough, o'l thermocontrolled means i'or operating an inlet valve, manually operated means l'or operat ingthe. valve controlling the drain port, said manual means also being adapted to control said other valves, so that all inlet ports in the chamber are open when the discharge port is unrestricted, a connection between the radiator outlet. and one ot' said inlet ports, a byp'ass around said radiator and connected with the other :inlet port, and a connection between the chamber and the jacket. inlet'.

1G. In an internal combustion engine, the eon'ibination with a cylinder jacket, having an inlet port and an outlet port, a radiator, connections between said radiator and said ports, a by-pass around said radiator, valve. means for regulating the circulation through said radiator and by-pass respectively, and a drain port arranged in the lowest part ot the circulating system, means for opening and closing said drain port, said means be` ing connected with said valves, whereby all paths to said drain por( are. open when the drain port is open.

17. In an internal combustion engine, the cooling system comprising a cylinder jacket, having an Vinlet port and an outlet port, a radiator, connections between the. radiator and said ports, a by-pass around said radiator, valve. means for controlling the. circnlation through the. radiator and by-pass respectively, said system beingr provided with a drain port, arranged at the lowest point therein, and a valve therefor, ol' means connecting said valves whereby allare opened simultaneously.

18. In an interna] combustion engine cooling system, the combination with a cylinder jacket having an inlet port and an outlet port, a radiator, connections therelietween,`

a by-pass around said radiator, Valve. means forcontrollmg the circulation through said radiator and by-pass respectively, thermostatic means for operating said valve means,

said system being provided with a dra-1n port arranged at the lowest point therein, said drain port being adapted to be manually contrulled, and means connecting said valves whereby all may be opened at the Y same time.

In testimony whereof I ax my signature 1n the presence of two Witnesses.

vLYLE K. SNELL. 

